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<Title>PolarVectorLayer.setVectorMargin</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1"><a href="PolarVectorLayer.htm">PolarVectorLayer</a>.<wbr>setVectorMargin</p>
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<p class="heading2a">Usage</p>
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public void setVectorMargin(double startMargin [, double endMargin ])
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<p class="heading2">Description</p>
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Sets the margins to shorten the vectors.<br><br>
By default, vectors will be drawn from the given start points to the given end points.<br><br>
In some cases, it may be desirable to shorten the vectors so that they do not start exactly at the start points and/or end exactly at the end points. For example, the vectors may be used to point to some circular symbols created by a <a href="ScatterLayer.htm">ScatterLayer</a>. The vectors may need to point to the perimeter of the circles, rather than their centers. This can be achieved by shortening the vectors by the radius of the circles.
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<p class="heading2">Arguments</p>
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<th width="19%">Argument</th><th width="19%">Default</th><th>Description</th>
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<td>startMargin</td><td>(Mandatory)</td><td>The length to shorten at the start of the vector in pixels.</td></tr><tr><td>endMargin</td><td><a href="Chart.NoValue.htm">NoValue</a></td><td>The length to shorten at the end of the vector in pixels. <a href="Chart.NoValue.htm">NoValue</a> means the length is the same as <b>startMargin</b>.</td>
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<p class="heading2">Return Value</p>
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None
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